1. Fig. 2. (A) Mean (±1 SD) δ¹³C of Hemimysis by sampling site. Benthic and pelagic end-members are also shown as a ○ or ♦, respectively, for each site. (B) Mean (±1 SD) δ¹⁵N of Hemimysis by sampling site. The baseline used in determining trophic offset is displayed as a • for each site. (C): Mean (±1 SD) C:N ratios by site. Values at Bronte are shown for both female (+) and male (*) Hemimysis because significant differences existed between genders. Sites sharing a letter are not significantly different from one another at the 0.05 level of significance. Open bars reflect Lake Ontario sites, dark grey bars Lake Erie sites and light grey bars St. Lawrence River sites.
From: Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin
J Plankton Res. 2013;35(4): doi: /plankt/fbt040
J Plankton Res | © The Author Published by Oxford University Press. All rights reserved. For permissions, please

2. Fig. 1. Location of sampling sites
Fig. 1. Location of sampling sites. Sites are labelled as follows: (1) Port Dalhousie, (2) Bronte, (3) Waupoos, (4) Port Burwell, (5) Port Colborne, (6) Port Dover, (7) Port Maitland, (8) Q12, (9) St Timothée, (10) Q8, (11) Q45, (12) Q56, and (13) Q57.
From: Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin
J Plankton Res. 2013;35(4): doi: /plankt/fbt040
J Plankton Res | © The Author Published by Oxford University Press. All rights reserved. For permissions, please

3. Fig. 5. Mean (±1 SD) trophic offset of Hemimysis by site
Fig. 5. Mean (±1 SD) trophic offset of Hemimysis by site. Sites sharing a letter are not significantly different from another at the 0.05 level of significance. Sites connected with an asterisk (*) are significantly different when female Hemimysis from Bronte are used, and not significantly different when male Hemimysis from Bronte are used. The mean values and standard deviations are shown for both male (higher mean value) and female (lower mean value) Hemimysis at Bronte, where significant differences existed between genders. Open bars reflect Lake Ontario sites, dark grey bars Lake Erie sites and light grey bars St Lawrence River sites.
From: Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin
J Plankton Res. 2013;35(4): doi: /plankt/fbt040
J Plankton Res | © The Author Published by Oxford University Press. All rights reserved. For permissions, please

4. Fig. 3. The mean fraction of dietary carbon of Hemimysis obtained from pelagic sources. Sites with differing letters are significantly different from one another at the 0.05 level of significance. The mean values and standard deviations are shown for both female (higher mean value) and male (lower mean value) Hemimysis at Bronte, where significant differences existed between genders. Open bars reflect Lake Ontario sites, dark grey bars Lake Erie sites and light grey bars St Lawrence River sites.
From: Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin
J Plankton Res. 2013;35(4): doi: /plankt/fbt040
J Plankton Res | © The Author Published by Oxford University Press. All rights reserved. For permissions, please

5. Fig. 4. Mean pelagic fraction of dietary carbon at a site versus the difference in δ¹³C values between end-members (‰). The different locations are denoted by open circles (○) for Lake Ontario, closed circles (•) for Lake Erie and triangles (▴) for the St Lawrence River. The regression lines for all sites and for only lentic sites are shown with a solid line and a dashed line, respectively.
From: Spatial variability in trophic offset and food sources of Hemimysis anomala in lentic and lotic ecosystems within the Great Lakes basin
J Plankton Res. 2013;35(4): doi: /plankt/fbt040
J Plankton Res | © The Author Published by Oxford University Press. All rights reserved. For permissions, please